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Class 14
ENVIRONMENTAL STUDIES
Answer the following questions by select...

Answer the following questions by selecting the most appropriate option
An air pump is kept in an aquarium in order to

A

Provide more carbon dioxide fo-water-plants

B

Allow more oxygen to dissolve in water

C

Enhance the beauty of the aquarium

D

Make water cleaners

Text Solution

Verified by Experts

The correct Answer is:
B
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